{
  "abstract": "A power tool including a power tool housing, an interface configured to receive a battery pack, an internal energy storage circuit located within the power tool housing, a trigger for user control of power tool operation, a plurality of switches configured to connect the battery pack and the internal energy storage circuit in series or parallel, and a controller. The controller is configured to receive a control signal from the trigger, control the power tool based on the control signal, control the plurality of switches to set a power source configuration of the power tool by selectively connecting the battery pack, the internal energy storage circuit, or both the battery pack and the internal energy storage circuit to a load of the power tool, and provide energy to the load of the power tool according to the power source configuration.",
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  "published_at": "2026-09-15T19:02:55.550737Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-04-16",
  "source_id": "US-2026102894-A1",
  "source_name": "the United States Patent and Trademark Office",
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  "supersedes": null,
  "title": "Power tool including an internal auxiliary power supply",
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}